M35 Cobalt Step Drill Bit - 1/8" to 1/2" (13 Sizes) - Unibit Four Spiral Flute - 1/4" Hex Shank - Metal Drilling Bit: High Strength, Durability, Efficient

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About This M35 step drill bit: ENBMEI step drill bit is made of high-quality M35 high-speed steel, which has excellent hardness and heat resistance and can increase drilling speed by 2-3 times. Cobalt step drill bit: The drill bit is made of M35 cobalt-containing high-performance material, which improves the wear resistance and heat resistance of the drill bit. It has a long service life and does not need to be replaced frequently. Impact step drill: This drill bit is used with a variety of power tools, including impact drills, and can withstand a certain amount of impact force. Unibit Drill Bits: Step Drill Bits feature 13 different steps, making it easy to handle many different sizes of drilling needs without changing drill bits. 1/4" Hex Shank: The drill bit features a 1/4" hex shank design, making it compatible with most power tools. Quad Helical Flutes: The drill bit features four spiral flutes to improve drilling efficiency and reduce friction. Not only can this drill work on metal, but it also performs well on stainless steel, plastics, and a variety of other materials, making it less likely to clog when drilling and requiring no removal of impurities. Overview Material : Cobalt Steel Shank Type : Hex Brand : ENBMEI Tool Flute Type : Spiral Surface Recommendation : Copper, Metal, Stainless, Wood Show more